Sand-pump



(No Model.)

W. H. BIRGE.

SAND PUMP.

No. 311,945. Patented Feb. 10. 1885.

WITNESSES UNITED STATES ATENT OFFICE.

. WILLIAM BIRGE, OF FRANKLIN, ASSIGNOR TO THE OIL WELL SUPPLY COMPANY,(LIMITED,) OF OIL CITY, PENNSYLVANIA.

SAND- PUMP.

SPECIFICATION forming part of Letters Patent No. 311,945, dated February10, 1885.

Application filed February 7, 1884. (No model.) i

.To aZZ whom it may concern.-

Be it known that I, ,WILLIAM H. Brace, of Franklin, in the-county ofVenango and State of Pennsylvania, have invented certain new and usefulImprovements inSand-Pumps; and I do hereby declare the following to be afull, clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame.

My invention relates to an improvement in sandpumps which are used inremoving the drillings or mud from oil-wells or other deep wells whereit is necessary to lower and raise the pump many times, and therebysubject it to wear by contact with the sides of the well. These pumps,when loaded with sand, are too heavy for the drillers to handle readily,and they are raised by a sand-line and allowed to fall on thederrick-floor, when the lower end is raised and the mud or sand allowedto run out.

The object of my present invention is to provide a strong and durablepump which shall combine simplicity and economy in construction withdurabilityand efficiency in use; and

with these ends in View my invention consists l in the parts andcombinations of parts, as will be more fully described, and pointed outin the claim.

I11 the accompanying drawings, Figure 1 is a view in perspective of thepump; and Fig. 2 is an enlarged view, partly in elevation and partly insection, of the upper end of the pump.

A represents the cylinder of thepump, provided at the bottom withsuitable perforations for allowing the sand to enter the cylinder. Thetop of the cylinderA is provided with an annular collar, B, having twodiametrically opposite upwardly-extending arms or stand ards, b. Thesestandards are drawn toward each other near their upper ends, forming theshoulders I), and these upper portions are perforated to receive theends c of the rocking bar 0. The ends 0 project a little outside thestandards I), and are upset to keep the standards from spreading. Thebar O is shouldered against the inner surfaces of the standards b, andis transversely perforated to receive the I plunger-rod D, saidplunger-rod being allowed an easy sliding motion therein. The lower endof the plunger-rod is threaded and provided with a metal disk, E,somewhat less in diameter than the hole in the cylinder A, and facedwith the leather disks 6 on its upper side. These leather disks areslightly larger than the hole in the cylinder A, and may act as a valveto allow the air to escape during the downward stroke of the piston byslightly lifting. The disks E andeare secured in their positions on therod D by means of the locknutsf and suitable washers. When the pump israised from the well, the plunger-rod may project upward, and when thepump is allowed to fall on the door the rocking bar 0 and the open spacebetween the standards b allow t-heplungerrod to remain upright while thelower end of the pump is raisedand con tents emptied. The drawing in ofthe standards b where the ends of the rocking bar proj ect relievesthese ends from the .wear against the sides of the well, which wear istaken by the main bodyof the standard or by suitable projecting ribs, G,placed at convenient distancrs about the collar B.

Ido not wish to limit myself strictly to the construction herein setforth, as it is evident that slight changes may be made withoutdeparting from the spirit and scope of my invention.

Having fully described my invention, what I Patent, is

In a sand-pump, the combination, with a cylinder, a ring or collarsecured to the upper end of said cylinder, and provided withlongitudinal ribs or projections, and the bent standards formed integralwith said ring or collar, ofa rocking bar journaled in the upper ends ofsaid standards, and a plunger-rod passing through the bar, substantiallyas set forth.

In testimony whereof'I have signed this specification in the presenceoftwo subscribing witnesses.

WILLIAM H. BIRGE. WVitnesses:

A. G. EGBERT, J AMES MILLER.

claim as new, and desire to secure by Letters

